opensource tools for IP & DNS management [was: Opensource tools for inventory and troubleticketing]

[Miles Fidelman <mfidelman () meetinghouse net>]

Along related lines:

Anybody have any suggestions for good opensource tools for managing 
blocks of IP addresses, and domain name assignments - ideally with hooks 
for updating nameservers and registry databases?  Last time I looked 
everyone was still using either spreadsheets or high-priced proprietary 
tools - figure it's time to ask again.

Thanks,

Miles Fidelman

--
In theory, there is no difference between theory and practice.
In practice, there is.   .... Yogi Berra